Adding a citation inside a citation with natbib

Question

I want to get the following kind of citation using natbib, is that possible?

"some guy said this" (SomeGuy, 2010, as cited in SomeOtherGuy, 2013)

I can do this manually by writing:

"some guy said this" \citep[as cited in SomeOtherGuy, 2013]{someguykey2010}

but I would much rather have the second reference be a reference in itself.

Answer 1

Do you mean something like this?

\documentclass{article}

\usepackage{filecontents}

\begin{filecontents}{\jobname.bib}
@article{someguykey2010,
author="SomeGuy",
title="A journal article",
year=2010,
journal="A Journal",
}
@article{someotherguykey2013,
author="SomeOtherGuy",
title="A journal article",
year=2013,
journal="A Journal",
}
\end{filecontents}

\usepackage[round]{natbib}

\begin{document}

``some guy said this'' \citep[as cited in \citealp{someotherguykey2013}]{someguykey2010}

\bibliographystyle{plainnat}
\bibliography{\jobname}

\end{document} 

If you want, you can even define a new command \doublecitep

\newcommand{\doublecitep}[2]{\citep[as cited in \citealp{#2}]{#1}}

and use it like

\doublecitep{someguykey2010}{someotherguykey2013}

instead of

\citep[as cited in \citealp{someotherguykey2013}]{someguykey2010}